> On Jan 16, 2020, at 1:12 PM, Jeremy Harris via Exim-users <exim-users@???> wrote:
>
>> Does anyone know of anything that Exim can do to modify the message as
>> it is routed through
>
> Exim can't; it's a policy decision in what it regards it's job
> as being. That covers things like not converting from 8-bit-dirty
> to uuencoded, and so forth. This would come into the same
> bucket.
FWIW, on a best-effort "garbage in / garbage out" basis, Postfix by
default folds long body lines in messages by inserting CRLF + SPACE.
http://www.postfix.org/postconf.5.html#smtp_line_length_limit
If the incoming message is not RFC-compliant, it may be modified
in transit, in a way that minimizes damage to already poorly
formed message.
--
Viktor.
